Smoking pipe



March 23, 1954 w PATTERSON 2,672,873

SMOKING PIPE Filed Oct. 8, 1948 INVENTOR. Wig/AM R. PA rre/zsou A TTOR NEY Patented Mar. 1954 SMOKING PIPE William R. Patterson, Lomita, Calif.

Application October 8, 1948, Serial No. 53,428

4 Claims. (Cl. 131-213) 1 My invention relates to thefield of smoking pipes, and more particularly to a pipe having a device positioned in the bore thereof whereby ashes, flakes of tobacco and moisture are prevented from being drawn into the mouth of the smoker.

Although numerous filters and traps for use in smoking pipes have been devised and marketed in the past, the majority of these devices have the disadvantage of a complicated mechanical structure which makes it diflicult to maintain them in a clean and sanitary condition whereby they can satisfactorily perform the function for which they are intended.

It is a major object of my invention to provide a combination moisture trap and smoke filtering device that can be adapted to any one of the conventionally shaped smoking pipes, will have an extremely simple mechanical structure, can easily be removed from the pipe for cleaning purposes when the occasion so requires, is adapted to be fabricated from inexpensive material, and can be incorporated in' a pipe at the time of its manufacture at a relatively small additional cost.

Another object of my invention is to provide a device which when removed from the bore portion of the pipe will at the same time automatically clean the bore due to this removal operation, with the device when so removed being easily separated into its component parts whereby each of these parts can be thoroughly cleaned with a minimum of effort.

These and other objects and advantages of my invention will become apparent from the following description when taken in conjunction'with the appended drawings, wherein:

Figure 1 is a vertical longitudinal cross-sectional view of a straight stemmed pipe with my invention installed in the bore thereof;

Figure 2 is a perspective view of my combined moisture trap and smoke filtering device;

Figure 3 is a. bottom plan View of the forward portion of the device; t

Figure 4 is a vertical cross-sectional view of the device taken on the line 4-4 of Figure 1;

Figure 5 is a vertical cross-sectional view of the device positioned in a pipe having a slightly sloping stem;

Figure 6 is a vertical cross-sectional view of an alternate form of the device positioned in a pipe having an angularly positioned stem;

Figure '7 is a bottom perspective view of the alternate form of the device; I r

Figure 8 is a top perspective view of the alternate form of -the device shown'inl 'igure 7; and,"

Figure 9 is an enlarged fragmentary vertical cross-sectional view of the front portion of the alternate form of the device shown in Figures 6,

'7 and 8.

Referring to Figures 1 to 4 inclusive for the general arrangement of my invention, it will be seen that a conventional smoking pipe P is formed with a bowl ID, and a shank portion H extending outwardly from the rearward portion thereof. The shank I l is provided on its outer end with a bit i2. Formed in the bowl portion In is a downwardly extending cylindrical cavity ii; in which the tobacco to be smoked is positioned, and from the downward portion of the cavity a small diameter bore 14 extends rearwardly. An annular shoulder I5 is formed at the junction of the bore I4 with a rearwardly and longitudinally extending bore [6 which has a considerably greater cross-sectional diameter than the bore [4.

Extending outwardly from each side of the bore I6 is a longitudinally extending slot I! as can best be seen in-Figure 4 that terminates at short.

distance from the shoulder 15 for reasons which will hereinafter be explained. Slidably supported in the slot l1 within the confines of the bore I6 is a member l8 formed with a longitudinally extending flange IS on each side thereof, and having a downwardly extending groove portion 20 of semi-circular cross-section which is of greater length than the flanges 19 whereby it protrudes rearwardly from the rear end of these flanges and. defines when taken with the walls of thebore and the bit smoke apertures 2|, the purpose of which will be hereinafter set forth. Situated in the groove portion 20 is a tubular member 22 that extends outwardly from the rearward end of said groove portion, and is provided on the forward end with an annular plate 23 having a number of horizontal bores 24 formed in the upper portion thereof. A transversely positioned slit-like opening 26 is formed in the forward part of the groove portion 20 as can best be seen in Figure 3, and is in vertical alignment with a similar opening 21' formed in the lower portion of the tubular member 22 (Figure 1).

On the forward face of the member 23 is a circular centrally disposed forwardly curved member 28 that is adapted to be seated against the shoulder l5, and is provided with a slot/29 therein which serves as a passage to permit smoke to be drawn rearwardly from the bowl l0 through the bore [4. The assembly of the pipe P with my invention installed therein is forward faceof the bit- I21 "reaching the apertures 2I passes downwardly therethrough to reverse'its flow in a forward. direction until" itreaches the. transversely positioned slits 26 and'21 which permitit to move upwardly into the confinesof the tube 22' whereupon it again reverses its direction to move rear- 'wardl'y through the tube. into the bore 30 ofbit inserted into the bore I6 until the member 28 is in contact with the shoulder I as shown in Figure 1. When thus assembled the flanges I9 occupy all but a small rearward portion of the slots I1, and the rear of the groove portion is flush with the rearward edge of the shank II. The rearwardly extending tubular member 22 is slipped into the forward end of the bore formed in the bit l2 as a connection whereby tobacco, smokefrom the bowl= Izoscan pass. to. the smokers mouth.

As smoke is drawn rearwardly from the cavity I3 it passes through the bore I4 to the member. 28 which would normally block the exit from bore I4 were it not for a horizontal slot 29 provided therein. Upon reaching: this point the smoke passes through slot 29 and is further blocked from moving rearwardl y by" theannular plate 23, with the only passage therethrouglr be.- ing the bores 24 formed in the upper portion of the plate above the flanges I9. The upper portion of theshankv bore I6is separatedfrom the lower portion thereof by the. flanges l'9',. with. the exception of'the'smoke apertures 2I' formed between the rearward edges of the flanges and the The smoke upon 1'2.. It will benoted that the portion of thebore t6 below the flanges I9 is only; in communicationwith the'upper portion of the bore. through the. smoke apertures 2| as. the plate. '23 'fits. very snugly within the confines of bore I6. Thusit will be 'seenthatin the. operationof my inven tion ashes. or. flakes of. tobacco; are prevented from ..enteri"ng the. bore 16,. due tothe. plate 23. being .lfirmly positioned against the side. walls. of the boreahdonly permitting tobacco. smoke to: pass rearwardly through the bores! 24.

I'Althoughmoisture. may be precipitated upon v.theifiangesI9. and tube 22,,'it is difficultfor this liquid. to be drawn into the. smokers.mouth .thnoughlthe, bo1te30 as, the. liquid will flow rearwardlyalongthe. upper-surface of the. flanges) to. apertures 2i, and. downwardly there- -.through to. the lower portion. of. the bore I-6. -However, evenwhen the. moisture or liquid is situated. in the lower portion of the-bore I.6- it w-illnot be readily drawn-intothesmokers-mouth as. it cannot. easily rise --upwardly through the openingsv 26 and 21 to pass into=-thetubular member 22.

"Such-moisture as is: precipitated in-the:- bore I 6 willbe removed therefrom as-my' invention. is

- removed. from thestem-tI-of the pipe-for=clean- .ing purposesby the plate 231 scraping both: sol-id "and-liquid material fromthe face of the .bore

I16" as-the tube 22 is moved-rearwardly. With invention removed. from-the confines. of the bore I6 it is separated into two-component parts.

I It and-22;; which due: to their extreme mechanical; simplicity are easily cleanedlgand the: parts then re-a-ssembled to be placed-into thepipe P ras: previously described toserve. as: a combined moisture trapand filter during the smoking of tobacco in. the. cavity I3.

In, the pipe P" shown in. Figure 5;.my invention when. incorporated therein is fabricatedin substantially thesame manner as, the deviceused "i'nc'onnection withthe'pipe P. In theiuse of. my

smoke then moves rearwardly to the apertures 2I to reverse its flow in the lower portion of 'the bore I6 and upon reaching the forward portion. thereof. moves upwardly through the openings 26 and 21 into the tube 22. Upon the smoke :enteringthe tube 22, it is pulled rearwardly therethrough. to enter the bore 30 and thence into the smokers mouth.

The alternate form of my device 50, as shown in FiguresB- through 9*, isfabricatedas an .integral unit from an. inert' material,. such as 'one ofthe synthetic plastics adapted for this purpose, which will not alter the taste of tobacco smokepassingthrough the device. The operation of the alternate form of my device5ll when installed in a pipe is substantially the-same as my previously d'escribedform.

Irrreferring to. these figures;. it will be noted that the alternate "form'ofth'e device includes. a

tube 5 I- having longitudinally extending flanges '52 formed on each sidethereof; withthe flanges terminating a shortdistancefrom the rearward end 5211 of the tube. Situated on the. forward end. of the tube 51 is a resilient annular packing 53' which engages the. interior-surface of the. pipe stem. bore in which the device 5.0 is. positioned. The packing 53 is held, in position between two longitudinally spaced' annular members-54.- that are formed as an integrallpart .of the. tubeffil.

In Figures 7; Sand. 9.,.it will benoted that two bores '55 extend; rearwardly from. the. face of. the

device toterminat'e. directly behind. the rearwardl'y positioned. annular. member 54'. Thus, as "tobacco. smoke. is d'rawnfrom. the .pipebowl through. the bores 55' itflows rearwardl-y above the upper. surfacel56 of. the. fianges.' 52 to pass downwardly through verticalbores li'l formed in the rearward portion ofthe. flanges. Thesmoke then' reverses its flow .to move. forwardly along the underside 58' of the'fianges to pass upwardly through a. bone. or opening. 5.9. into the. tube 5I.

' Thev sm'okefthen reverses. itsLflOw to pass. rearwardly through thetubeiil into. the. bit. of the pipe as previously explained. The rearwardly extending. portion 52a of tube. 5|. engages the forward. end of. the. bit,, and. serves. to. removalcvly "hold the stem-and. bit of the. pipe together.

ated forwardly ofsaid' opening; aresilient annular packing. situatedbetween said members and said members having-asmokepassage. extending longitudinally through-the upper half. thereof;

and two. oppositelydisposed.flanges aflixedatosaid tube and extending along a portion of the longitudinal length of said tube, and said flanges having smoke passage means formed in the rearward portion thereof.

2. A moisture removing device for use in a smokers pipe having a straight outer shank portion which includes: an elongated tube that has a rearward end portion that may be removably engaged by the bit of a pipe, the lower portion of the wall of said tube being formed with a bore; two longitudinally spaced annular members formed on the forward end portion of said tube and disposed forwardly from said bore, with said members having a smoke passage extending longitudinally through the upper half portion thereof; a resilient ring disposed between said annular members; and two oppositely disposed flanges extending outwardly from said tube between the forward and rearward end portions thereof, said flanges having smoke passages formed in the rearward part thereof.

in the bore of said shank with its rearward portion being adapted to slidably engage said bit, said tube having an opening in a portion of the wall thereof; a pair of longitudinally spaced annular members formed on the forward end of said tube; a resilient packing positioned between said annular members, said packing forming a seal with the bore of said shank; a longitudinally extending smoke passage formed through the upper half of said annular members; and a pair of longitudinally extending flanges extending outwardly from the exterior of said tube, said flanges being adapted to slidably engage said slots, and said flanges having smoke apertures in their rearward portions whereby smoke when drawn from said bowl may pass through said smoke passage, smoke apertures, and said tube by means of said opening therein in order that moisture contained in said smoke may be condensed in the lower portion of the bore of said shank to be removed therefrom by rearward movement of said tube, said rearward movement causing said packing to wipe the wall of said bore.

4. A moisture removing device for use in a conventional pipe having a bowl formed with a straight centrally bored shank extending outward from its rearward portion, and a bit provided on the rear end of said shank, said shank being formed with a pair of longitudinally extending slots along the bore thereof, comprising: an elongated tube that may be longitudinally positioned in the bore of said shank, said tube having an opening in a forward wall portion thereof; two oppositely disposed flanges extending outwardly from said tube between the forward and rearward end portions thereof, said flanges being capable of engaging said slots, and said flanges cooperating with said bore to define upper and lower longitudinally extending smoke passages; two longitudinally spaced annular members disposed on the forward end portion of said tube, said members having a plurality of bores extending rearwardly therethrough that terminate in the rearmost of said members above said flanges; and a resilient ring situated between said members, the periphery of which effects a moisture-tight seal with said bore to cause all smoke flowing through said shank bore to pass rearwardly through said bores in said members and said upper passage to openings formed in the rearward part of said flanges through which it flows downwardly to travel forwardly in said lower passage until it enters the opening situated in the forward part of said tube, with the smoke then flowing rearwardly through said tube to enter said bit, and moisture condensing from said smoke as it traverses said lower passage being removable therefrom by rearward movement of said tube to cause said annular member to wipe said shank bore clean of moisture and foreign material.

WILLIAM R. PATTERSON.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 933,091 Matson Sept. '7, 1909 987,824 Perry Mar. 28, 1911 1,056,982 Everett Mar. 25, 1913 1,081,929 Hill Dec. 16, 1913 1,595,654 Green Aug. 10, 1926 1,620,438 Bushee Mar. 8, 1927 1,794,002 Deus Feb. 24, 1931 2,258,823 Tarrant Oct. 14, 1941 FOREIGN PATENTS Number Country Date 29,410 Great Britain of 1908 

